Anjir is informal Indonesian slang used as a surprised or emphatic exclamation, while wibu is the local word for a weeaboo, someone deeply enthusiastic about anime and Japanese pop culture. Put together, the phrase circulates online as a light-hearted tease among fans, and no single original clip is widely documented. It has spread through Indonesian anime communities, short videos and reaction edits, where it sits alongside other anime reaction clips like anime ahh, and it remains useful because the joke is instantly understood by viewers who know the slang.